Communication Via Point-To-Point Cp On The Et 200M - Siemens SIMATIC S7-400H System Manual

14.5.3

Communication via point-to-point CP on the ET 200M

Connection via ET 200M
Links from fault-tolerant systems to single-channel systems are often possible only by way of
point-to-point connections, as many systems offer no other connection options.
In order to make the data of a single-channel system available to CPUs of the fault-tolerant
system as well, the point-to-point CP (CP 341) must be installed in a distributed rack along
with two IM 153-2 modules.
Configuring connections
Redundant connections between the point-to-point CP and the fault-tolerant system are not
necessary.
Figure 14-11 Example of connecting a fault-tolerant system to a single-channel third-party system
S7-400H
System Manual, 03/2012, A5E00267695-11
using switched PROFIBUS DP
14.5 Communication via S7 connections
Communication
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